AT&T Business Consortium Program
| General Terms and Conditions | Effective As Of |
| Version 1.2 | December 3, 2001–July 16, 2002 |
| Version 1.3 | July 17, 2002–December 2, 2002 |
| Version 1.4 | December 2, 2002–December 4, 2003 |
| Version 1.5 | December 5, 2003–July 19, 2004 |
| Version 1.6 | July 20, 2004–April 24, 2005 |
| Version 2.0 | April 25, 2005–January 29, 2006 |
| Version 3.0 | January 30, 2006–July 4, 2006 |
| Version 3.1 | July 5, 2006–May 29, 2007 |
| Version 4.0 | May 30, 2007–April 30, 2008 |
| Version 4.1 | May 1, 2008–December 10, 2008 |
| Version 4.2 | December 11, 2008–April 30, 2009 |
| Version 4.3 | May 1, 2009–July 21, 2009 |
| Version 4.4 | July 22, 2009–August 25, 2009 |
| Version 4.5 | August 26, 2009–December 20, 2009 |
| Version 4.6 | December 21, 2009–September 19, 2010 |
| Version 4.7 | September 20, 2010–January 9, 2011 |
| Version 4.8 | January 10, 2011–May 26, 2011 |
| Version 4.9 | May 27, 2011–March 1, 2012 |
| Version 4.10 | March 2, 2012–August 18, 2012 |
| Version 4.11 | August 19, 2012–March 21, 2013 |
| Version 4.12 | March 23, 2013–September 25, 2017 |
| Version 4.13 | September 26, 2017–June 23, 2018 |
| Version 4.14 | June 24, 2018–June 15, 2019 |
| Version 4.15 | June 16, 2019–January 19, 2020 |
| Version 4.16 | January 20, 2020–April 30, 2020 |
| Version 4.17 | May 1, 2020–August 15, 2020 |
| Version 4.18 | August 16, 2020–August 30, 2020 |
| Version 4.19 | August 30, 2020–September 29, 2020 |